Quiz 6

Question 1

Oxidation

Answer 1

• Loss of Electrons
• Increase in oxidatoin number

Question 2

Reduction

Answer 2

• Gain of election
• Decrease in oxidation number

Question 3

Oxiadtion number rules

Answer 3

• Group 1: always +1
• Group 2: always +2
• Oxygen:usually -2, exept when bonded with Florine
• Hydrogen: non-metals +1 and metals -1
• Chlorine: -1, unless bonded with oxygen or florine

Question 4

Balancing redox reactions

Answer 4

1. Divide into half-reaction
2. Balance half-reactions seperately
   * Balance things other than H and O
   * balance oxygen with H2O
   * Balance hydrogen with H+
   * balance charges by adding electrons
3. Multiply be integer to get electrons to equal each other
4. Check everything
5. If in a basic condition then get ride of H+ by adding OH-

Question 5

Galvanic Cells (voltaic cells)

Answer 5

generates electric energy/current from redox reaction

Question 6

Electrolytic Cells

Answer 6

produces chemical change from iinput of electrical energy/current

Question 7

Cell Notation

Answer 7

• left side Anode
• right side is Cathode
• Anode is oxidation
• Cathode is reduction

Question 8

Half-reaction Chart

Answer 8

• Higher reduction potentials like being reduced
• Lower reduction potentials like being oxidized

Question 9

Disolving Metals

Answer 9

Question 10

Relationship between E and G

Answer 10

E > 0 then G < 0

Question 11

Relationship between E Keq

Answer 11

Keq= 10^(nE)/0.0592